/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 17:50:11,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 17:50:11,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 17:50:11,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 17:50:11,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 17:50:11,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 17:50:11,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 17:50:11,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 17:50:11,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 17:50:11,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 17:50:11,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 17:50:11,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 17:50:11,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 17:50:11,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 17:50:11,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 17:50:11,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 17:50:11,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 17:50:11,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 17:50:11,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 17:50:11,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 17:50:11,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 17:50:11,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 17:50:11,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 17:50:11,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 17:50:11,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 17:50:11,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 17:50:11,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 17:50:11,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 17:50:11,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 17:50:11,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 17:50:11,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 17:50:11,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 17:50:11,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 17:50:11,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 17:50:11,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 17:50:11,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 17:50:11,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 17:50:11,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 17:50:11,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 17:50:11,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 17:50:11,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 17:50:11,425 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 17:50:11,438 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 17:50:11,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 17:50:11,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 17:50:11,440 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 17:50:11,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 17:50:11,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 17:50:11,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 17:50:11,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 17:50:11,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 17:50:11,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 17:50:11,441 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 17:50:11,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 17:50:11,442 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 17:50:11,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 17:50:11,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 17:50:11,442 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 17:50:11,442 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 17:50:11,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 17:50:11,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:50:11,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 17:50:11,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 17:50:11,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 17:50:11,444 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 17:50:12,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 17:50:12,034 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 17:50:12,038 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 17:50:12,041 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 17:50:12,042 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 17:50:12,043 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2020-09-04 17:50:12,140 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fab4b3667/57d2962368b842d387838a8296af06ea/FLAG6e9b2faae [2020-09-04 17:50:12,799 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 17:50:12,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2020-09-04 17:50:12,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fab4b3667/57d2962368b842d387838a8296af06ea/FLAG6e9b2faae [2020-09-04 17:50:13,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fab4b3667/57d2962368b842d387838a8296af06ea [2020-09-04 17:50:13,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 17:50:13,089 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 17:50:13,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 17:50:13,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 17:50:13,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 17:50:13,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:50:13" (1/1) ... [2020-09-04 17:50:13,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a688b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:50:13, skipping insertion in model container [2020-09-04 17:50:13,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:50:13" (1/1) ... [2020-09-04 17:50:13,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 17:50:13,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 17:50:13,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:50:13,558 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 17:50:13,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:50:13,806 INFO L208 MainTranslator]: Completed translation [2020-09-04 17:50:13,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:50:13 WrapperNode [2020-09-04 17:50:13,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 17:50:13,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 17:50:13,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 17:50:13,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 17:50:13,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:50:13" (1/1) ... [2020-09-04 17:50:13,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:50:13" (1/1) ... [2020-09-04 17:50:13,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:50:13" (1/1) ... [2020-09-04 17:50:13,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:50:13" (1/1) ... [2020-09-04 17:50:13,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:50:13" (1/1) ... [2020-09-04 17:50:13,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:50:13" (1/1) ... [2020-09-04 17:50:13,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:50:13" (1/1) ... [2020-09-04 17:50:13,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 17:50:13,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 17:50:13,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 17:50:13,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 17:50:13,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:50:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:50:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 17:50:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 17:50:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 17:50:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 17:50:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2020-09-04 17:50:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-04 17:50:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 17:50:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 17:50:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 17:50:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 17:50:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 17:50:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 17:50:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 17:50:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 17:50:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 17:50:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 17:50:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 17:50:15,530 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 17:50:15,531 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 17:50:15,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:50:15 BoogieIcfgContainer [2020-09-04 17:50:15,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 17:50:15,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 17:50:15,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 17:50:15,558 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 17:50:15,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 05:50:13" (1/3) ... [2020-09-04 17:50:15,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687e42d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:50:15, skipping insertion in model container [2020-09-04 17:50:15,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:50:13" (2/3) ... [2020-09-04 17:50:15,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687e42d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:50:15, skipping insertion in model container [2020-09-04 17:50:15,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:50:15" (3/3) ... [2020-09-04 17:50:15,562 INFO L109 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.c [2020-09-04 17:50:15,574 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 17:50:15,586 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 17:50:15,609 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 17:50:15,639 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 17:50:15,639 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 17:50:15,639 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 17:50:15,639 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 17:50:15,639 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 17:50:15,640 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 17:50:15,640 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 17:50:15,640 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 17:50:15,670 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states. [2020-09-04 17:50:15,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2020-09-04 17:50:15,716 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:50:15,718 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:50:15,719 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:50:15,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:50:15,728 INFO L82 PathProgramCache]: Analyzing trace with hash -378957588, now seen corresponding path program 1 times [2020-09-04 17:50:15,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:50:15,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362031787] [2020-09-04 17:50:15,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:50:15,816 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:50:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:17,257 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:50:17,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:50:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:17,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:50:17,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362031787] [2020-09-04 17:50:17,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:50:17,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-04 17:50:17,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62337377] [2020-09-04 17:50:17,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 17:50:17,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:50:17,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 17:50:17,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-09-04 17:50:17,869 INFO L87 Difference]: Start difference. First operand 726 states. Second operand 14 states. [2020-09-04 17:50:18,237 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:50:20,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:50:20,952 INFO L93 Difference]: Finished difference Result 806 states and 850 transitions. [2020-09-04 17:50:20,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 17:50:20,955 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 488 [2020-09-04 17:50:20,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:50:21,003 INFO L225 Difference]: With dead ends: 806 [2020-09-04 17:50:21,009 INFO L226 Difference]: Without dead ends: 532 [2020-09-04 17:50:21,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2020-09-04 17:50:21,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2020-09-04 17:50:21,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 512. [2020-09-04 17:50:21,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-09-04 17:50:21,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 512 transitions. [2020-09-04 17:50:21,216 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 512 transitions. Word has length 488 [2020-09-04 17:50:21,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:50:21,221 INFO L479 AbstractCegarLoop]: Abstraction has 512 states and 512 transitions. [2020-09-04 17:50:21,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 17:50:21,221 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 512 transitions. [2020-09-04 17:50:21,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2020-09-04 17:50:21,242 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:50:21,243 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:50:21,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 17:50:21,244 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:50:21,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:50:21,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1127244588, now seen corresponding path program 1 times [2020-09-04 17:50:21,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:50:21,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861163690] [2020-09-04 17:50:21,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:50:21,296 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:50:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:22,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:50:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:22,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:50:22,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861163690] [2020-09-04 17:50:22,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:50:22,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-04 17:50:22,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859907785] [2020-09-04 17:50:22,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-04 17:50:22,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:50:22,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-04 17:50:22,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-09-04 17:50:22,540 INFO L87 Difference]: Start difference. First operand 512 states and 512 transitions. Second operand 15 states. [2020-09-04 17:50:22,808 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:50:24,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:50:24,986 INFO L93 Difference]: Finished difference Result 563 states and 563 transitions. [2020-09-04 17:50:24,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 17:50:24,987 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 511 [2020-09-04 17:50:24,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:50:24,993 INFO L225 Difference]: With dead ends: 563 [2020-09-04 17:50:24,994 INFO L226 Difference]: Without dead ends: 555 [2020-09-04 17:50:24,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2020-09-04 17:50:24,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-09-04 17:50:25,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 535. [2020-09-04 17:50:25,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 535 states. [2020-09-04 17:50:25,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 535 transitions. [2020-09-04 17:50:25,052 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 535 transitions. Word has length 511 [2020-09-04 17:50:25,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:50:25,054 INFO L479 AbstractCegarLoop]: Abstraction has 535 states and 535 transitions. [2020-09-04 17:50:25,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-04 17:50:25,054 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 535 transitions. [2020-09-04 17:50:25,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2020-09-04 17:50:25,058 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:50:25,059 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:50:25,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 17:50:25,059 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:50:25,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:50:25,060 INFO L82 PathProgramCache]: Analyzing trace with hash -382293012, now seen corresponding path program 2 times [2020-09-04 17:50:25,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:50:25,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380905968] [2020-09-04 17:50:25,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:50:25,070 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:50:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:25,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:50:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:26,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:50:26,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380905968] [2020-09-04 17:50:26,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:50:26,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-09-04 17:50:26,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96711015] [2020-09-04 17:50:26,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-04 17:50:26,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:50:26,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-04 17:50:26,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2020-09-04 17:50:26,177 INFO L87 Difference]: Start difference. First operand 535 states and 535 transitions. Second operand 16 states. [2020-09-04 17:50:26,386 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:50:28,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:50:28,819 INFO L93 Difference]: Finished difference Result 586 states and 586 transitions. [2020-09-04 17:50:28,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-04 17:50:28,820 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 534 [2020-09-04 17:50:28,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:50:28,824 INFO L225 Difference]: With dead ends: 586 [2020-09-04 17:50:28,824 INFO L226 Difference]: Without dead ends: 578 [2020-09-04 17:50:28,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2020-09-04 17:50:28,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-09-04 17:50:28,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 558. [2020-09-04 17:50:28,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-09-04 17:50:28,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 558 transitions. [2020-09-04 17:50:28,869 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 558 transitions. Word has length 534 [2020-09-04 17:50:28,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:50:28,870 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 558 transitions. [2020-09-04 17:50:28,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-04 17:50:28,870 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 558 transitions. [2020-09-04 17:50:28,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2020-09-04 17:50:28,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:50:28,875 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:50:28,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 17:50:28,876 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:50:28,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:50:28,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1886659028, now seen corresponding path program 3 times [2020-09-04 17:50:28,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:50:28,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958968891] [2020-09-04 17:50:28,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:50:28,886 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:50:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:29,700 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:50:29,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:50:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:30,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:50:30,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958968891] [2020-09-04 17:50:30,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:50:30,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-09-04 17:50:30,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737346133] [2020-09-04 17:50:30,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-04 17:50:30,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:50:30,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-04 17:50:30,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-09-04 17:50:30,466 INFO L87 Difference]: Start difference. First operand 558 states and 558 transitions. Second operand 17 states. [2020-09-04 17:50:33,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:50:33,316 INFO L93 Difference]: Finished difference Result 609 states and 609 transitions. [2020-09-04 17:50:33,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-04 17:50:33,318 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 557 [2020-09-04 17:50:33,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:50:33,323 INFO L225 Difference]: With dead ends: 609 [2020-09-04 17:50:33,323 INFO L226 Difference]: Without dead ends: 601 [2020-09-04 17:50:33,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2020-09-04 17:50:33,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2020-09-04 17:50:33,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 581. [2020-09-04 17:50:33,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2020-09-04 17:50:33,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 581 transitions. [2020-09-04 17:50:33,377 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 581 transitions. Word has length 557 [2020-09-04 17:50:33,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:50:33,378 INFO L479 AbstractCegarLoop]: Abstraction has 581 states and 581 transitions. [2020-09-04 17:50:33,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-04 17:50:33,379 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 581 transitions. [2020-09-04 17:50:33,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2020-09-04 17:50:33,383 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:50:33,383 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:50:33,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 17:50:33,386 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:50:33,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:50:33,389 INFO L82 PathProgramCache]: Analyzing trace with hash 743212780, now seen corresponding path program 4 times [2020-09-04 17:50:33,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:50:33,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1577160382] [2020-09-04 17:50:33,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:50:33,402 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:50:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:34,184 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:50:34,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:50:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:35,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:50:35,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1577160382] [2020-09-04 17:50:35,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:50:35,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-09-04 17:50:35,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178506694] [2020-09-04 17:50:35,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-04 17:50:35,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:50:35,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-04 17:50:35,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2020-09-04 17:50:35,075 INFO L87 Difference]: Start difference. First operand 581 states and 581 transitions. Second operand 18 states. [2020-09-04 17:50:35,364 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:50:38,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:50:38,238 INFO L93 Difference]: Finished difference Result 632 states and 632 transitions. [2020-09-04 17:50:38,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-04 17:50:38,240 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 580 [2020-09-04 17:50:38,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:50:38,245 INFO L225 Difference]: With dead ends: 632 [2020-09-04 17:50:38,245 INFO L226 Difference]: Without dead ends: 624 [2020-09-04 17:50:38,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=93, Invalid=963, Unknown=0, NotChecked=0, Total=1056 [2020-09-04 17:50:38,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-09-04 17:50:38,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 604. [2020-09-04 17:50:38,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2020-09-04 17:50:38,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 604 transitions. [2020-09-04 17:50:38,292 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 604 transitions. Word has length 580 [2020-09-04 17:50:38,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:50:38,293 INFO L479 AbstractCegarLoop]: Abstraction has 604 states and 604 transitions. [2020-09-04 17:50:38,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-04 17:50:38,294 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 604 transitions. [2020-09-04 17:50:38,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2020-09-04 17:50:38,298 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:50:38,299 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:50:38,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 17:50:38,299 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:50:38,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:50:38,300 INFO L82 PathProgramCache]: Analyzing trace with hash -621287724, now seen corresponding path program 5 times [2020-09-04 17:50:38,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:50:38,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1273591309] [2020-09-04 17:50:38,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:50:38,315 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:50:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:39,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:50:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:39,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:50:39,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1273591309] [2020-09-04 17:50:39,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:50:39,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-09-04 17:50:39,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843083979] [2020-09-04 17:50:39,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-04 17:50:39,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:50:39,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-04 17:50:39,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-09-04 17:50:39,715 INFO L87 Difference]: Start difference. First operand 604 states and 604 transitions. Second operand 19 states. [2020-09-04 17:50:39,927 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:50:43,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:50:43,152 INFO L93 Difference]: Finished difference Result 655 states and 655 transitions. [2020-09-04 17:50:43,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-04 17:50:43,153 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 603 [2020-09-04 17:50:43,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:50:43,158 INFO L225 Difference]: With dead ends: 655 [2020-09-04 17:50:43,158 INFO L226 Difference]: Without dead ends: 647 [2020-09-04 17:50:43,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=1091, Unknown=0, NotChecked=0, Total=1190 [2020-09-04 17:50:43,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2020-09-04 17:50:43,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 627. [2020-09-04 17:50:43,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 627 states. [2020-09-04 17:50:43,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 627 transitions. [2020-09-04 17:50:43,211 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 627 transitions. Word has length 603 [2020-09-04 17:50:43,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:50:43,213 INFO L479 AbstractCegarLoop]: Abstraction has 627 states and 627 transitions. [2020-09-04 17:50:43,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-04 17:50:43,213 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 627 transitions. [2020-09-04 17:50:43,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2020-09-04 17:50:43,219 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:50:43,219 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:50:43,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 17:50:43,220 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:50:43,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:50:43,221 INFO L82 PathProgramCache]: Analyzing trace with hash -782556692, now seen corresponding path program 6 times [2020-09-04 17:50:43,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:50:43,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422144599] [2020-09-04 17:50:43,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:50:43,239 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:50:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:44,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:50:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:44,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:50:44,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422144599] [2020-09-04 17:50:44,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:50:44,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-09-04 17:50:44,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385520971] [2020-09-04 17:50:44,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-04 17:50:44,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:50:44,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-04 17:50:44,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2020-09-04 17:50:44,530 INFO L87 Difference]: Start difference. First operand 627 states and 627 transitions. Second operand 20 states. [2020-09-04 17:50:44,770 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:50:48,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:50:48,268 INFO L93 Difference]: Finished difference Result 678 states and 678 transitions. [2020-09-04 17:50:48,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-04 17:50:48,274 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 626 [2020-09-04 17:50:48,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:50:48,277 INFO L225 Difference]: With dead ends: 678 [2020-09-04 17:50:48,277 INFO L226 Difference]: Without dead ends: 670 [2020-09-04 17:50:48,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=105, Invalid=1227, Unknown=0, NotChecked=0, Total=1332 [2020-09-04 17:50:48,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2020-09-04 17:50:48,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 650. [2020-09-04 17:50:48,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-09-04 17:50:48,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 650 transitions. [2020-09-04 17:50:48,334 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 650 transitions. Word has length 626 [2020-09-04 17:50:48,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:50:48,335 INFO L479 AbstractCegarLoop]: Abstraction has 650 states and 650 transitions. [2020-09-04 17:50:48,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-04 17:50:48,336 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 650 transitions. [2020-09-04 17:50:48,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2020-09-04 17:50:48,341 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:50:48,341 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:50:48,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 17:50:48,342 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:50:48,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:50:48,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1470819284, now seen corresponding path program 7 times [2020-09-04 17:50:48,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:50:48,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480676718] [2020-09-04 17:50:48,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:50:48,361 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:50:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:49,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:50:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:49,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:50:49,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480676718] [2020-09-04 17:50:49,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:50:49,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-09-04 17:50:49,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518978631] [2020-09-04 17:50:49,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-04 17:50:49,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:50:49,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-04 17:50:49,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-09-04 17:50:49,904 INFO L87 Difference]: Start difference. First operand 650 states and 650 transitions. Second operand 21 states. [2020-09-04 17:50:50,148 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:50:53,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:50:53,859 INFO L93 Difference]: Finished difference Result 701 states and 701 transitions. [2020-09-04 17:50:53,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-04 17:50:53,859 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 649 [2020-09-04 17:50:53,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:50:53,864 INFO L225 Difference]: With dead ends: 701 [2020-09-04 17:50:53,864 INFO L226 Difference]: Without dead ends: 693 [2020-09-04 17:50:53,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=111, Invalid=1371, Unknown=0, NotChecked=0, Total=1482 [2020-09-04 17:50:53,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2020-09-04 17:50:53,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 673. [2020-09-04 17:50:53,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2020-09-04 17:50:53,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 673 transitions. [2020-09-04 17:50:53,915 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 673 transitions. Word has length 649 [2020-09-04 17:50:53,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:50:53,916 INFO L479 AbstractCegarLoop]: Abstraction has 673 states and 673 transitions. [2020-09-04 17:50:53,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-04 17:50:53,916 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 673 transitions. [2020-09-04 17:50:53,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2020-09-04 17:50:53,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:50:53,922 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:50:53,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-04 17:50:53,923 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:50:53,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:50:53,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1022198548, now seen corresponding path program 8 times [2020-09-04 17:50:53,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:50:53,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [767741090] [2020-09-04 17:50:53,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:50:53,933 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:50:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:54,905 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:50:54,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:50:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:50:55,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:50:55,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [767741090] [2020-09-04 17:50:55,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:50:55,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-09-04 17:50:55,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115197527] [2020-09-04 17:50:55,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-04 17:50:55,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:50:55,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-04 17:50:55,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2020-09-04 17:50:55,418 INFO L87 Difference]: Start difference. First operand 673 states and 673 transitions. Second operand 22 states. [2020-09-04 17:50:55,665 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:50:59,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:50:59,639 INFO L93 Difference]: Finished difference Result 724 states and 724 transitions. [2020-09-04 17:50:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-04 17:50:59,642 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 672 [2020-09-04 17:50:59,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:50:59,646 INFO L225 Difference]: With dead ends: 724 [2020-09-04 17:50:59,646 INFO L226 Difference]: Without dead ends: 716 [2020-09-04 17:50:59,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=117, Invalid=1523, Unknown=0, NotChecked=0, Total=1640 [2020-09-04 17:50:59,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-09-04 17:50:59,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 696. [2020-09-04 17:50:59,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 696 states. [2020-09-04 17:50:59,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 696 transitions. [2020-09-04 17:50:59,712 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 696 transitions. Word has length 672 [2020-09-04 17:50:59,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:50:59,713 INFO L479 AbstractCegarLoop]: Abstraction has 696 states and 696 transitions. [2020-09-04 17:50:59,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-04 17:50:59,713 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 696 transitions. [2020-09-04 17:50:59,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2020-09-04 17:50:59,719 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:50:59,719 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:50:59,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-04 17:50:59,720 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:50:59,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:50:59,721 INFO L82 PathProgramCache]: Analyzing trace with hash -170053420, now seen corresponding path program 9 times [2020-09-04 17:50:59,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:50:59,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81782882] [2020-09-04 17:50:59,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:50:59,736 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:50:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:00,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:51:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:01,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:51:01,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81782882] [2020-09-04 17:51:01,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:51:01,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-09-04 17:51:01,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604528740] [2020-09-04 17:51:01,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-04 17:51:01,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:51:01,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-04 17:51:01,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-09-04 17:51:01,151 INFO L87 Difference]: Start difference. First operand 696 states and 696 transitions. Second operand 23 states. [2020-09-04 17:51:01,398 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:51:05,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:51:05,697 INFO L93 Difference]: Finished difference Result 747 states and 747 transitions. [2020-09-04 17:51:05,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-04 17:51:05,698 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 695 [2020-09-04 17:51:05,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:51:05,702 INFO L225 Difference]: With dead ends: 747 [2020-09-04 17:51:05,702 INFO L226 Difference]: Without dead ends: 739 [2020-09-04 17:51:05,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=123, Invalid=1683, Unknown=0, NotChecked=0, Total=1806 [2020-09-04 17:51:05,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2020-09-04 17:51:05,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 719. [2020-09-04 17:51:05,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2020-09-04 17:51:05,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 719 transitions. [2020-09-04 17:51:05,787 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 719 transitions. Word has length 695 [2020-09-04 17:51:05,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:51:05,788 INFO L479 AbstractCegarLoop]: Abstraction has 719 states and 719 transitions. [2020-09-04 17:51:05,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-04 17:51:05,789 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 719 transitions. [2020-09-04 17:51:05,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 719 [2020-09-04 17:51:05,795 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:51:05,796 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:51:05,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-04 17:51:05,797 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:51:05,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:51:05,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1205692436, now seen corresponding path program 10 times [2020-09-04 17:51:05,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:51:05,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1937280074] [2020-09-04 17:51:05,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:51:05,808 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:51:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:06,876 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:51:06,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:51:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:07,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:51:07,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1937280074] [2020-09-04 17:51:07,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:51:07,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-09-04 17:51:07,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305694335] [2020-09-04 17:51:07,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-04 17:51:07,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:51:07,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-04 17:51:07,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2020-09-04 17:51:07,344 INFO L87 Difference]: Start difference. First operand 719 states and 719 transitions. Second operand 24 states. [2020-09-04 17:51:07,601 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:51:12,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:51:12,289 INFO L93 Difference]: Finished difference Result 770 states and 770 transitions. [2020-09-04 17:51:12,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-04 17:51:12,289 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 718 [2020-09-04 17:51:12,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:51:12,294 INFO L225 Difference]: With dead ends: 770 [2020-09-04 17:51:12,294 INFO L226 Difference]: Without dead ends: 762 [2020-09-04 17:51:12,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=129, Invalid=1851, Unknown=0, NotChecked=0, Total=1980 [2020-09-04 17:51:12,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2020-09-04 17:51:12,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 742. [2020-09-04 17:51:12,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2020-09-04 17:51:12,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 742 transitions. [2020-09-04 17:51:12,373 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 742 transitions. Word has length 718 [2020-09-04 17:51:12,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:51:12,374 INFO L479 AbstractCegarLoop]: Abstraction has 742 states and 742 transitions. [2020-09-04 17:51:12,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-04 17:51:12,375 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 742 transitions. [2020-09-04 17:51:12,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 742 [2020-09-04 17:51:12,379 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:51:12,379 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:51:12,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-04 17:51:12,380 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:51:12,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:51:12,380 INFO L82 PathProgramCache]: Analyzing trace with hash 2027861460, now seen corresponding path program 11 times [2020-09-04 17:51:12,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:51:12,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540490731] [2020-09-04 17:51:12,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:51:12,389 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:51:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:13,530 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:51:13,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:51:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:14,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:51:14,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540490731] [2020-09-04 17:51:14,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:51:14,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-09-04 17:51:14,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000294273] [2020-09-04 17:51:14,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-04 17:51:14,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:51:14,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-04 17:51:14,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-04 17:51:14,056 INFO L87 Difference]: Start difference. First operand 742 states and 742 transitions. Second operand 25 states. [2020-09-04 17:51:14,317 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:51:19,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:51:19,373 INFO L93 Difference]: Finished difference Result 793 states and 793 transitions. [2020-09-04 17:51:19,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-04 17:51:19,376 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 741 [2020-09-04 17:51:19,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:51:19,379 INFO L225 Difference]: With dead ends: 793 [2020-09-04 17:51:19,379 INFO L226 Difference]: Without dead ends: 785 [2020-09-04 17:51:19,381 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=135, Invalid=2027, Unknown=0, NotChecked=0, Total=2162 [2020-09-04 17:51:19,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2020-09-04 17:51:19,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 765. [2020-09-04 17:51:19,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2020-09-04 17:51:19,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 765 transitions. [2020-09-04 17:51:19,443 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 765 transitions. Word has length 741 [2020-09-04 17:51:19,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:51:19,444 INFO L479 AbstractCegarLoop]: Abstraction has 765 states and 765 transitions. [2020-09-04 17:51:19,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-04 17:51:19,444 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 765 transitions. [2020-09-04 17:51:19,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 765 [2020-09-04 17:51:19,451 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:51:19,452 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:51:19,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-04 17:51:19,452 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:51:19,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:51:19,453 INFO L82 PathProgramCache]: Analyzing trace with hash 859534060, now seen corresponding path program 12 times [2020-09-04 17:51:19,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:51:19,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957283398] [2020-09-04 17:51:19,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:51:19,463 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:51:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:20,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:51:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:21,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:51:21,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957283398] [2020-09-04 17:51:21,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:51:21,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-09-04 17:51:21,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033529159] [2020-09-04 17:51:21,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-09-04 17:51:21,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:51:21,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-09-04 17:51:21,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2020-09-04 17:51:21,206 INFO L87 Difference]: Start difference. First operand 765 states and 765 transitions. Second operand 26 states. [2020-09-04 17:51:21,460 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:51:26,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:51:26,920 INFO L93 Difference]: Finished difference Result 816 states and 816 transitions. [2020-09-04 17:51:26,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-04 17:51:26,921 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 764 [2020-09-04 17:51:26,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:51:26,924 INFO L225 Difference]: With dead ends: 816 [2020-09-04 17:51:26,924 INFO L226 Difference]: Without dead ends: 808 [2020-09-04 17:51:26,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=141, Invalid=2211, Unknown=0, NotChecked=0, Total=2352 [2020-09-04 17:51:26,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2020-09-04 17:51:26,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 788. [2020-09-04 17:51:26,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2020-09-04 17:51:26,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 788 transitions. [2020-09-04 17:51:26,991 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 788 transitions. Word has length 764 [2020-09-04 17:51:26,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:51:26,992 INFO L479 AbstractCegarLoop]: Abstraction has 788 states and 788 transitions. [2020-09-04 17:51:26,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-09-04 17:51:26,992 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 788 transitions. [2020-09-04 17:51:26,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2020-09-04 17:51:26,999 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:51:27,000 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:51:27,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-04 17:51:27,000 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:51:27,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:51:27,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1476360916, now seen corresponding path program 13 times [2020-09-04 17:51:27,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:51:27,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669733010] [2020-09-04 17:51:27,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:51:27,015 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:51:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:28,216 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:51:28,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:51:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:28,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:51:28,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669733010] [2020-09-04 17:51:28,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:51:28,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2020-09-04 17:51:28,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928761249] [2020-09-04 17:51:28,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-04 17:51:28,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:51:28,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-04 17:51:28,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-09-04 17:51:28,800 INFO L87 Difference]: Start difference. First operand 788 states and 788 transitions. Second operand 27 states. [2020-09-04 17:51:29,057 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:51:34,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:51:34,987 INFO L93 Difference]: Finished difference Result 839 states and 839 transitions. [2020-09-04 17:51:34,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-04 17:51:34,988 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 787 [2020-09-04 17:51:34,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:51:34,992 INFO L225 Difference]: With dead ends: 839 [2020-09-04 17:51:34,992 INFO L226 Difference]: Without dead ends: 831 [2020-09-04 17:51:34,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=147, Invalid=2403, Unknown=0, NotChecked=0, Total=2550 [2020-09-04 17:51:34,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2020-09-04 17:51:35,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 811. [2020-09-04 17:51:35,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-09-04 17:51:35,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 811 transitions. [2020-09-04 17:51:35,061 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 811 transitions. Word has length 787 [2020-09-04 17:51:35,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:51:35,062 INFO L479 AbstractCegarLoop]: Abstraction has 811 states and 811 transitions. [2020-09-04 17:51:35,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-04 17:51:35,062 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 811 transitions. [2020-09-04 17:51:35,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2020-09-04 17:51:35,069 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:51:35,070 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:51:35,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-04 17:51:35,071 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:51:35,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:51:35,071 INFO L82 PathProgramCache]: Analyzing trace with hash -2096296468, now seen corresponding path program 14 times [2020-09-04 17:51:35,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:51:35,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445237158] [2020-09-04 17:51:35,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:51:35,081 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:51:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:36,388 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:51:36,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:51:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:37,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:51:37,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445237158] [2020-09-04 17:51:37,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:51:37,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-09-04 17:51:37,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691183294] [2020-09-04 17:51:37,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-09-04 17:51:37,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:51:37,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-09-04 17:51:37,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2020-09-04 17:51:37,005 INFO L87 Difference]: Start difference. First operand 811 states and 811 transitions. Second operand 28 states. [2020-09-04 17:51:37,278 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:51:43,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:51:43,653 INFO L93 Difference]: Finished difference Result 862 states and 862 transitions. [2020-09-04 17:51:43,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-04 17:51:43,654 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 810 [2020-09-04 17:51:43,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:51:43,657 INFO L225 Difference]: With dead ends: 862 [2020-09-04 17:51:43,657 INFO L226 Difference]: Without dead ends: 854 [2020-09-04 17:51:43,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=153, Invalid=2603, Unknown=0, NotChecked=0, Total=2756 [2020-09-04 17:51:43,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2020-09-04 17:51:43,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 834. [2020-09-04 17:51:43,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 834 states. [2020-09-04 17:51:43,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 834 transitions. [2020-09-04 17:51:43,744 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 834 transitions. Word has length 810 [2020-09-04 17:51:43,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:51:43,745 INFO L479 AbstractCegarLoop]: Abstraction has 834 states and 834 transitions. [2020-09-04 17:51:43,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-09-04 17:51:43,745 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 834 transitions. [2020-09-04 17:51:43,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 834 [2020-09-04 17:51:43,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:51:43,752 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:51:43,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-04 17:51:43,753 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:51:43,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:51:43,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1097891884, now seen corresponding path program 15 times [2020-09-04 17:51:43,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:51:43,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483726200] [2020-09-04 17:51:43,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:51:43,763 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:51:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:45,165 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:51:45,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:51:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:45,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:51:45,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483726200] [2020-09-04 17:51:45,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:51:45,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2020-09-04 17:51:45,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942904072] [2020-09-04 17:51:45,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-04 17:51:45,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:51:45,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-04 17:51:45,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-09-04 17:51:45,842 INFO L87 Difference]: Start difference. First operand 834 states and 834 transitions. Second operand 29 states. [2020-09-04 17:51:46,109 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:51:52,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:51:52,960 INFO L93 Difference]: Finished difference Result 885 states and 885 transitions. [2020-09-04 17:51:52,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-04 17:51:52,961 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 833 [2020-09-04 17:51:52,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:51:52,964 INFO L225 Difference]: With dead ends: 885 [2020-09-04 17:51:52,965 INFO L226 Difference]: Without dead ends: 877 [2020-09-04 17:51:52,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=159, Invalid=2811, Unknown=0, NotChecked=0, Total=2970 [2020-09-04 17:51:52,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2020-09-04 17:51:53,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 857. [2020-09-04 17:51:53,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2020-09-04 17:51:53,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 857 transitions. [2020-09-04 17:51:53,042 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 857 transitions. Word has length 833 [2020-09-04 17:51:53,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:51:53,043 INFO L479 AbstractCegarLoop]: Abstraction has 857 states and 857 transitions. [2020-09-04 17:51:53,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-04 17:51:53,044 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 857 transitions. [2020-09-04 17:51:53,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 857 [2020-09-04 17:51:53,052 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:51:53,052 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:51:53,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-04 17:51:53,053 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:51:53,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:51:53,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1035507476, now seen corresponding path program 16 times [2020-09-04 17:51:53,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:51:53,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082298394] [2020-09-04 17:51:53,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:51:53,070 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:51:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:54,629 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:51:54,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:51:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:51:55,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:51:55,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082298394] [2020-09-04 17:51:55,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:51:55,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2020-09-04 17:51:55,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239374013] [2020-09-04 17:51:55,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-09-04 17:51:55,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:51:55,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-09-04 17:51:55,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=813, Unknown=0, NotChecked=0, Total=870 [2020-09-04 17:51:55,323 INFO L87 Difference]: Start difference. First operand 857 states and 857 transitions. Second operand 30 states. [2020-09-04 17:51:55,601 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:52:03,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:52:03,083 INFO L93 Difference]: Finished difference Result 908 states and 908 transitions. [2020-09-04 17:52:03,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-09-04 17:52:03,084 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 856 [2020-09-04 17:52:03,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:52:03,088 INFO L225 Difference]: With dead ends: 908 [2020-09-04 17:52:03,088 INFO L226 Difference]: Without dead ends: 900 [2020-09-04 17:52:03,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=165, Invalid=3027, Unknown=0, NotChecked=0, Total=3192 [2020-09-04 17:52:03,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2020-09-04 17:52:03,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 880. [2020-09-04 17:52:03,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-09-04 17:52:03,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 880 transitions. [2020-09-04 17:52:03,145 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 880 transitions. Word has length 856 [2020-09-04 17:52:03,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:52:03,146 INFO L479 AbstractCegarLoop]: Abstraction has 880 states and 880 transitions. [2020-09-04 17:52:03,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-09-04 17:52:03,146 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 880 transitions. [2020-09-04 17:52:03,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 880 [2020-09-04 17:52:03,154 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:52:03,155 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:52:03,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-04 17:52:03,155 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:52:03,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:52:03,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1948334892, now seen corresponding path program 17 times [2020-09-04 17:52:03,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:52:03,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1639585582] [2020-09-04 17:52:03,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:52:03,169 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:52:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:52:04,814 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:52:04,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:52:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:52:05,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:52:05,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1639585582] [2020-09-04 17:52:05,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:52:05,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2020-09-04 17:52:05,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683568788] [2020-09-04 17:52:05,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-09-04 17:52:05,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:52:05,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-09-04 17:52:05,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-09-04 17:52:05,586 INFO L87 Difference]: Start difference. First operand 880 states and 880 transitions. Second operand 31 states. [2020-09-04 17:52:05,875 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:52:14,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:52:14,016 INFO L93 Difference]: Finished difference Result 931 states and 931 transitions. [2020-09-04 17:52:14,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-04 17:52:14,017 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 879 [2020-09-04 17:52:14,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:52:14,020 INFO L225 Difference]: With dead ends: 931 [2020-09-04 17:52:14,020 INFO L226 Difference]: Without dead ends: 923 [2020-09-04 17:52:14,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=171, Invalid=3251, Unknown=0, NotChecked=0, Total=3422 [2020-09-04 17:52:14,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-09-04 17:52:14,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 903. [2020-09-04 17:52:14,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 903 states. [2020-09-04 17:52:14,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 903 transitions. [2020-09-04 17:52:14,074 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 903 transitions. Word has length 879 [2020-09-04 17:52:14,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:52:14,075 INFO L479 AbstractCegarLoop]: Abstraction has 903 states and 903 transitions. [2020-09-04 17:52:14,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-09-04 17:52:14,075 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 903 transitions. [2020-09-04 17:52:14,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 903 [2020-09-04 17:52:14,083 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:52:14,084 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:52:14,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-04 17:52:14,084 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:52:14,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:52:14,085 INFO L82 PathProgramCache]: Analyzing trace with hash -677739540, now seen corresponding path program 18 times [2020-09-04 17:52:14,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:52:14,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284292100] [2020-09-04 17:52:14,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:52:14,097 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:52:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:52:15,795 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:52:15,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:52:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:52:16,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:52:16,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284292100] [2020-09-04 17:52:16,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:52:16,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2020-09-04 17:52:16,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233821645] [2020-09-04 17:52:16,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-09-04 17:52:16,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:52:16,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-09-04 17:52:16,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=931, Unknown=0, NotChecked=0, Total=992 [2020-09-04 17:52:16,617 INFO L87 Difference]: Start difference. First operand 903 states and 903 transitions. Second operand 32 states. [2020-09-04 17:52:16,917 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:52:25,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:52:25,666 INFO L93 Difference]: Finished difference Result 954 states and 954 transitions. [2020-09-04 17:52:25,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-04 17:52:25,668 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 902 [2020-09-04 17:52:25,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:52:25,672 INFO L225 Difference]: With dead ends: 954 [2020-09-04 17:52:25,672 INFO L226 Difference]: Without dead ends: 946 [2020-09-04 17:52:25,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=177, Invalid=3483, Unknown=0, NotChecked=0, Total=3660 [2020-09-04 17:52:25,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2020-09-04 17:52:25,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 926. [2020-09-04 17:52:25,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 926 states. [2020-09-04 17:52:25,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 926 transitions. [2020-09-04 17:52:25,728 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 926 transitions. Word has length 902 [2020-09-04 17:52:25,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:52:25,728 INFO L479 AbstractCegarLoop]: Abstraction has 926 states and 926 transitions. [2020-09-04 17:52:25,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-09-04 17:52:25,729 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 926 transitions. [2020-09-04 17:52:25,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 926 [2020-09-04 17:52:25,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:52:25,738 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:52:25,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-04 17:52:25,738 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:52:25,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:52:25,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1396525524, now seen corresponding path program 19 times [2020-09-04 17:52:25,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:52:25,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269210347] [2020-09-04 17:52:25,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:52:25,753 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:52:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:52:27,571 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:52:27,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:52:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:52:28,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:52:28,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269210347] [2020-09-04 17:52:28,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:52:28,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2020-09-04 17:52:28,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984859501] [2020-09-04 17:52:28,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-09-04 17:52:28,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:52:28,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-09-04 17:52:28,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2020-09-04 17:52:28,417 INFO L87 Difference]: Start difference. First operand 926 states and 926 transitions. Second operand 33 states. [2020-09-04 17:52:28,716 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:52:38,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:52:38,216 INFO L93 Difference]: Finished difference Result 977 states and 977 transitions. [2020-09-04 17:52:38,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-09-04 17:52:38,217 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 925 [2020-09-04 17:52:38,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:52:38,220 INFO L225 Difference]: With dead ends: 977 [2020-09-04 17:52:38,221 INFO L226 Difference]: Without dead ends: 969 [2020-09-04 17:52:38,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=183, Invalid=3723, Unknown=0, NotChecked=0, Total=3906 [2020-09-04 17:52:38,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2020-09-04 17:52:38,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 949. [2020-09-04 17:52:38,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 949 states. [2020-09-04 17:52:38,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 949 transitions. [2020-09-04 17:52:38,281 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 949 transitions. Word has length 925 [2020-09-04 17:52:38,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:52:38,281 INFO L479 AbstractCegarLoop]: Abstraction has 949 states and 949 transitions. [2020-09-04 17:52:38,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-09-04 17:52:38,282 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 949 transitions. [2020-09-04 17:52:38,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 949 [2020-09-04 17:52:38,287 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:52:38,288 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:52:38,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-04 17:52:38,288 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:52:38,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:52:38,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1974886124, now seen corresponding path program 20 times [2020-09-04 17:52:38,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:52:38,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [814704877] [2020-09-04 17:52:38,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:52:38,298 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:52:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:52:40,116 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:52:40,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:52:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:52:41,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:52:41,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [814704877] [2020-09-04 17:52:41,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:52:41,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2020-09-04 17:52:41,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652384743] [2020-09-04 17:52:41,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-09-04 17:52:41,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:52:41,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-09-04 17:52:41,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=1057, Unknown=0, NotChecked=0, Total=1122 [2020-09-04 17:52:41,026 INFO L87 Difference]: Start difference. First operand 949 states and 949 transitions. Second operand 34 states. [2020-09-04 17:52:41,346 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:52:51,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:52:51,523 INFO L93 Difference]: Finished difference Result 1000 states and 1000 transitions. [2020-09-04 17:52:51,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-04 17:52:51,525 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 948 [2020-09-04 17:52:51,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:52:51,529 INFO L225 Difference]: With dead ends: 1000 [2020-09-04 17:52:51,529 INFO L226 Difference]: Without dead ends: 992 [2020-09-04 17:52:51,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=189, Invalid=3971, Unknown=0, NotChecked=0, Total=4160 [2020-09-04 17:52:51,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2020-09-04 17:52:51,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 972. [2020-09-04 17:52:51,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 972 states. [2020-09-04 17:52:51,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 972 transitions. [2020-09-04 17:52:51,590 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 972 transitions. Word has length 948 [2020-09-04 17:52:51,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:52:51,591 INFO L479 AbstractCegarLoop]: Abstraction has 972 states and 972 transitions. [2020-09-04 17:52:51,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-09-04 17:52:51,591 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 972 transitions. [2020-09-04 17:52:51,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 972 [2020-09-04 17:52:51,597 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:52:51,597 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:52:51,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-04 17:52:51,598 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:52:51,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:52:51,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1543179988, now seen corresponding path program 21 times [2020-09-04 17:52:51,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:52:51,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649647351] [2020-09-04 17:52:51,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:52:51,610 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:52:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:52:53,513 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:52:53,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:52:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:52:54,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:52:54,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649647351] [2020-09-04 17:52:54,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:52:54,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2020-09-04 17:52:54,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715720765] [2020-09-04 17:52:54,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-09-04 17:52:54,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:52:54,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-09-04 17:52:54,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-09-04 17:52:54,457 INFO L87 Difference]: Start difference. First operand 972 states and 972 transitions. Second operand 35 states. [2020-09-04 17:52:54,769 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:53:05,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:53:05,800 INFO L93 Difference]: Finished difference Result 1023 states and 1023 transitions. [2020-09-04 17:53:05,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-04 17:53:05,804 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 971 [2020-09-04 17:53:05,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:53:05,808 INFO L225 Difference]: With dead ends: 1023 [2020-09-04 17:53:05,808 INFO L226 Difference]: Without dead ends: 1015 [2020-09-04 17:53:05,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=195, Invalid=4227, Unknown=0, NotChecked=0, Total=4422 [2020-09-04 17:53:05,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2020-09-04 17:53:05,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 995. [2020-09-04 17:53:05,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2020-09-04 17:53:05,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 995 transitions. [2020-09-04 17:53:05,874 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 995 transitions. Word has length 971 [2020-09-04 17:53:05,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:53:05,875 INFO L479 AbstractCegarLoop]: Abstraction has 995 states and 995 transitions. [2020-09-04 17:53:05,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-09-04 17:53:05,875 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 995 transitions. [2020-09-04 17:53:05,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 995 [2020-09-04 17:53:05,881 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:53:05,882 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:53:05,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-09-04 17:53:05,882 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:53:05,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:53:05,883 INFO L82 PathProgramCache]: Analyzing trace with hash 457898476, now seen corresponding path program 22 times [2020-09-04 17:53:05,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:53:05,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260650078] [2020-09-04 17:53:05,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:53:05,894 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:53:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:53:07,918 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:53:07,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:53:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:53:08,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:53:08,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260650078] [2020-09-04 17:53:08,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:53:08,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2020-09-04 17:53:08,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765311603] [2020-09-04 17:53:08,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-09-04 17:53:08,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:53:08,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-09-04 17:53:08,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=1191, Unknown=0, NotChecked=0, Total=1260 [2020-09-04 17:53:08,931 INFO L87 Difference]: Start difference. First operand 995 states and 995 transitions. Second operand 36 states. [2020-09-04 17:53:09,268 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:53:21,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:53:21,178 INFO L93 Difference]: Finished difference Result 1046 states and 1046 transitions. [2020-09-04 17:53:21,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-09-04 17:53:21,179 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 994 [2020-09-04 17:53:21,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:53:21,184 INFO L225 Difference]: With dead ends: 1046 [2020-09-04 17:53:21,185 INFO L226 Difference]: Without dead ends: 1038 [2020-09-04 17:53:21,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=201, Invalid=4491, Unknown=0, NotChecked=0, Total=4692 [2020-09-04 17:53:21,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-09-04 17:53:21,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1018. [2020-09-04 17:53:21,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1018 states. [2020-09-04 17:53:21,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1018 transitions. [2020-09-04 17:53:21,278 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1018 transitions. Word has length 994 [2020-09-04 17:53:21,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:53:21,279 INFO L479 AbstractCegarLoop]: Abstraction has 1018 states and 1018 transitions. [2020-09-04 17:53:21,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-09-04 17:53:21,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1018 transitions. [2020-09-04 17:53:21,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1018 [2020-09-04 17:53:21,289 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:53:21,289 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:53:21,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-09-04 17:53:21,289 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:53:21,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:53:21,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1587014700, now seen corresponding path program 23 times [2020-09-04 17:53:21,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:53:21,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42975932] [2020-09-04 17:53:21,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:53:21,300 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:53:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:53:23,465 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:53:23,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:53:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:53:24,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:53:24,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42975932] [2020-09-04 17:53:24,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:53:24,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2020-09-04 17:53:24,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563492767] [2020-09-04 17:53:24,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-09-04 17:53:24,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:53:24,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-09-04 17:53:24,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=1261, Unknown=0, NotChecked=0, Total=1332 [2020-09-04 17:53:24,480 INFO L87 Difference]: Start difference. First operand 1018 states and 1018 transitions. Second operand 37 states. [2020-09-04 17:53:24,817 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:53:37,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:53:37,709 INFO L93 Difference]: Finished difference Result 1069 states and 1069 transitions. [2020-09-04 17:53:37,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-09-04 17:53:37,710 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 1017 [2020-09-04 17:53:37,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:53:37,714 INFO L225 Difference]: With dead ends: 1069 [2020-09-04 17:53:37,714 INFO L226 Difference]: Without dead ends: 1061 [2020-09-04 17:53:37,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=207, Invalid=4763, Unknown=0, NotChecked=0, Total=4970 [2020-09-04 17:53:37,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2020-09-04 17:53:37,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1041. [2020-09-04 17:53:37,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2020-09-04 17:53:37,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1041 transitions. [2020-09-04 17:53:37,784 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1041 transitions. Word has length 1017 [2020-09-04 17:53:37,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:53:37,785 INFO L479 AbstractCegarLoop]: Abstraction has 1041 states and 1041 transitions. [2020-09-04 17:53:37,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-09-04 17:53:37,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1041 transitions. [2020-09-04 17:53:37,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1041 [2020-09-04 17:53:37,792 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:53:37,793 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:53:37,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-09-04 17:53:37,793 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:53:37,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:53:37,794 INFO L82 PathProgramCache]: Analyzing trace with hash 319313132, now seen corresponding path program 24 times [2020-09-04 17:53:37,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:53:37,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [939741241] [2020-09-04 17:53:37,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:53:37,802 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:53:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:53:40,059 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:53:40,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:53:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:53:41,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:53:41,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [939741241] [2020-09-04 17:53:41,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:53:41,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2020-09-04 17:53:41,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196740734] [2020-09-04 17:53:41,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-09-04 17:53:41,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:53:41,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-09-04 17:53:41,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=1333, Unknown=0, NotChecked=0, Total=1406 [2020-09-04 17:53:41,137 INFO L87 Difference]: Start difference. First operand 1041 states and 1041 transitions. Second operand 38 states. [2020-09-04 17:53:41,482 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:53:55,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:53:55,735 INFO L93 Difference]: Finished difference Result 1092 states and 1092 transitions. [2020-09-04 17:53:55,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-04 17:53:55,737 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 1040 [2020-09-04 17:53:55,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:53:55,741 INFO L225 Difference]: With dead ends: 1092 [2020-09-04 17:53:55,742 INFO L226 Difference]: Without dead ends: 1084 [2020-09-04 17:53:55,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=213, Invalid=5043, Unknown=0, NotChecked=0, Total=5256 [2020-09-04 17:53:55,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2020-09-04 17:53:55,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1064. [2020-09-04 17:53:55,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1064 states. [2020-09-04 17:53:55,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1064 transitions. [2020-09-04 17:53:55,814 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1064 transitions. Word has length 1040 [2020-09-04 17:53:55,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:53:55,814 INFO L479 AbstractCegarLoop]: Abstraction has 1064 states and 1064 transitions. [2020-09-04 17:53:55,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-09-04 17:53:55,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1064 transitions. [2020-09-04 17:53:55,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1064 [2020-09-04 17:53:55,822 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:53:55,822 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:53:55,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-09-04 17:53:55,823 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:53:55,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:53:55,823 INFO L82 PathProgramCache]: Analyzing trace with hash -757835564, now seen corresponding path program 25 times [2020-09-04 17:53:55,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:53:55,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305383432] [2020-09-04 17:53:55,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:53:55,833 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:53:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:53:58,288 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:53:58,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:53:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:53:59,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:53:59,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305383432] [2020-09-04 17:53:59,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:53:59,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2020-09-04 17:53:59,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166770771] [2020-09-04 17:53:59,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-09-04 17:53:59,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:53:59,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-09-04 17:53:59,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1407, Unknown=0, NotChecked=0, Total=1482 [2020-09-04 17:53:59,427 INFO L87 Difference]: Start difference. First operand 1064 states and 1064 transitions. Second operand 39 states. [2020-09-04 17:53:59,804 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:54:15,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:54:15,446 INFO L93 Difference]: Finished difference Result 1115 states and 1115 transitions. [2020-09-04 17:54:15,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-09-04 17:54:15,447 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 1063 [2020-09-04 17:54:15,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:54:15,452 INFO L225 Difference]: With dead ends: 1115 [2020-09-04 17:54:15,452 INFO L226 Difference]: Without dead ends: 1107 [2020-09-04 17:54:15,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=219, Invalid=5331, Unknown=0, NotChecked=0, Total=5550 [2020-09-04 17:54:15,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2020-09-04 17:54:15,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 1087. [2020-09-04 17:54:15,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1087 states. [2020-09-04 17:54:15,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1087 transitions. [2020-09-04 17:54:15,528 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1087 transitions. Word has length 1063 [2020-09-04 17:54:15,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:54:15,529 INFO L479 AbstractCegarLoop]: Abstraction has 1087 states and 1087 transitions. [2020-09-04 17:54:15,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-09-04 17:54:15,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1087 transitions. [2020-09-04 17:54:15,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1087 [2020-09-04 17:54:15,537 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:54:15,537 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:54:15,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-09-04 17:54:15,538 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:54:15,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:54:15,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1939763180, now seen corresponding path program 26 times [2020-09-04 17:54:15,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:54:15,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [626336676] [2020-09-04 17:54:15,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:54:15,557 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:54:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:54:18,185 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:54:18,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:54:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:54:19,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:54:19,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [626336676] [2020-09-04 17:54:19,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:54:19,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2020-09-04 17:54:19,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308934400] [2020-09-04 17:54:19,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-09-04 17:54:19,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:54:19,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-09-04 17:54:19,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2020-09-04 17:54:19,383 INFO L87 Difference]: Start difference. First operand 1087 states and 1087 transitions. Second operand 40 states. [2020-09-04 17:54:19,768 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:54:36,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:54:36,364 INFO L93 Difference]: Finished difference Result 1138 states and 1138 transitions. [2020-09-04 17:54:36,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-09-04 17:54:36,366 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 1086 [2020-09-04 17:54:36,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:54:36,371 INFO L225 Difference]: With dead ends: 1138 [2020-09-04 17:54:36,371 INFO L226 Difference]: Without dead ends: 1130 [2020-09-04 17:54:36,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=225, Invalid=5627, Unknown=0, NotChecked=0, Total=5852 [2020-09-04 17:54:36,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2020-09-04 17:54:36,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1110. [2020-09-04 17:54:36,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1110 states. [2020-09-04 17:54:36,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1110 transitions. [2020-09-04 17:54:36,476 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1110 transitions. Word has length 1086 [2020-09-04 17:54:36,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:54:36,477 INFO L479 AbstractCegarLoop]: Abstraction has 1110 states and 1110 transitions. [2020-09-04 17:54:36,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-09-04 17:54:36,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1110 transitions. [2020-09-04 17:54:36,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1110 [2020-09-04 17:54:36,491 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:54:36,492 INFO L422 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:54:36,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-09-04 17:54:36,492 INFO L427 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:54:36,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:54:36,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1401937364, now seen corresponding path program 27 times [2020-09-04 17:54:36,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:54:36,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455986213] [2020-09-04 17:54:36,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:54:36,505 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:54:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:54:39,413 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:54:39,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:54:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:54:40,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:54:40,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455986213] [2020-09-04 17:54:40,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:54:40,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2020-09-04 17:54:40,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911279380] [2020-09-04 17:54:40,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-09-04 17:54:40,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:54:40,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-09-04 17:54:40,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2020-09-04 17:54:40,867 INFO L87 Difference]: Start difference. First operand 1110 states and 1110 transitions. Second operand 41 states. [2020-09-04 17:54:41,246 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:54:59,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:54:59,876 INFO L93 Difference]: Finished difference Result 1161 states and 1161 transitions. [2020-09-04 17:54:59,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-04 17:54:59,878 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 1109 [2020-09-04 17:54:59,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:54:59,883 INFO L225 Difference]: With dead ends: 1161 [2020-09-04 17:54:59,883 INFO L226 Difference]: Without dead ends: 1153 [2020-09-04 17:54:59,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 703 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=231, Invalid=5931, Unknown=0, NotChecked=0, Total=6162 [2020-09-04 17:54:59,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2020-09-04 17:54:59,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1133. [2020-09-04 17:54:59,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1133 states. [2020-09-04 17:54:59,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1133 transitions. [2020-09-04 17:54:59,968 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1133 transitions. Word has length 1109 [2020-09-04 17:54:59,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:54:59,969 INFO L479 AbstractCegarLoop]: Abstraction has 1133 states and 1133 transitions. [2020-09-04 17:54:59,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-09-04 17:54:59,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1133 transitions. [2020-09-04 17:54:59,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1133 [2020-09-04 17:54:59,983 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:54:59,983 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 29, 29, 29, 29, 29, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:54:59,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-09-04 17:54:59,984 INFO L427 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:54:59,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:54:59,984 INFO L82 PathProgramCache]: Analyzing trace with hash 532499180, now seen corresponding path program 28 times [2020-09-04 17:54:59,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:54:59,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985009758] [2020-09-04 17:54:59,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:54:59,998 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:55:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:55:03,707 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:55:03,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:55:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:55:04,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:55:04,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985009758] [2020-09-04 17:55:04,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:55:05,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2020-09-04 17:55:05,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446955774] [2020-09-04 17:55:05,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-09-04 17:55:05,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:55:05,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-09-04 17:55:05,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1641, Unknown=0, NotChecked=0, Total=1722 [2020-09-04 17:55:05,001 INFO L87 Difference]: Start difference. First operand 1133 states and 1133 transitions. Second operand 42 states. [2020-09-04 17:55:05,416 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:55:25,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:55:25,588 INFO L93 Difference]: Finished difference Result 1184 states and 1184 transitions. [2020-09-04 17:55:25,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-09-04 17:55:25,590 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 1132 [2020-09-04 17:55:25,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:55:25,595 INFO L225 Difference]: With dead ends: 1184 [2020-09-04 17:55:25,595 INFO L226 Difference]: Without dead ends: 1176 [2020-09-04 17:55:25,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=237, Invalid=6243, Unknown=0, NotChecked=0, Total=6480 [2020-09-04 17:55:25,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2020-09-04 17:55:25,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1156. [2020-09-04 17:55:25,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1156 states. [2020-09-04 17:55:25,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1156 transitions. [2020-09-04 17:55:25,706 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1156 transitions. Word has length 1132 [2020-09-04 17:55:25,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:55:25,707 INFO L479 AbstractCegarLoop]: Abstraction has 1156 states and 1156 transitions. [2020-09-04 17:55:25,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-09-04 17:55:25,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1156 transitions. [2020-09-04 17:55:25,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1156 [2020-09-04 17:55:25,716 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:55:25,717 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 30, 30, 30, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:55:25,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-09-04 17:55:25,717 INFO L427 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:55:25,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:55:25,718 INFO L82 PathProgramCache]: Analyzing trace with hash 988455636, now seen corresponding path program 29 times [2020-09-04 17:55:25,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:55:25,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275283039] [2020-09-04 17:55:25,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:55:25,728 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:55:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:55:29,286 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:55:29,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:55:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:55:30,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:55:30,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275283039] [2020-09-04 17:55:30,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:55:30,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2020-09-04 17:55:30,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131066254] [2020-09-04 17:55:30,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-09-04 17:55:30,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:55:30,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-09-04 17:55:30,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2020-09-04 17:55:30,648 INFO L87 Difference]: Start difference. First operand 1156 states and 1156 transitions. Second operand 43 states. [2020-09-04 17:55:31,068 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:55:52,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:55:52,792 INFO L93 Difference]: Finished difference Result 1207 states and 1207 transitions. [2020-09-04 17:55:52,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-09-04 17:55:52,798 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 1155 [2020-09-04 17:55:52,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:55:52,804 INFO L225 Difference]: With dead ends: 1207 [2020-09-04 17:55:52,804 INFO L226 Difference]: Without dead ends: 1199 [2020-09-04 17:55:52,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 780 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=243, Invalid=6563, Unknown=0, NotChecked=0, Total=6806 [2020-09-04 17:55:52,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2020-09-04 17:55:52,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1179. [2020-09-04 17:55:52,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1179 states. [2020-09-04 17:55:52,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1179 transitions. [2020-09-04 17:55:52,982 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1179 transitions. Word has length 1155 [2020-09-04 17:55:52,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:55:52,983 INFO L479 AbstractCegarLoop]: Abstraction has 1179 states and 1179 transitions. [2020-09-04 17:55:52,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-09-04 17:55:52,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1179 transitions. [2020-09-04 17:55:53,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1179 [2020-09-04 17:55:53,000 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:55:53,001 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:55:53,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-09-04 17:55:53,001 INFO L427 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:55:53,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:55:53,002 INFO L82 PathProgramCache]: Analyzing trace with hash -971708948, now seen corresponding path program 30 times [2020-09-04 17:55:53,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:55:53,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443553483] [2020-09-04 17:55:53,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:55:53,018 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:55:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:55:56,929 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:55:56,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:55:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:55:58,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:55:58,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443553483] [2020-09-04 17:55:58,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:55:58,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2020-09-04 17:55:58,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574216472] [2020-09-04 17:55:58,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-09-04 17:55:58,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:55:58,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-09-04 17:55:58,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1807, Unknown=0, NotChecked=0, Total=1892 [2020-09-04 17:55:58,381 INFO L87 Difference]: Start difference. First operand 1179 states and 1179 transitions. Second operand 44 states. [2020-09-04 17:55:58,846 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:56:22,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:56:22,966 INFO L93 Difference]: Finished difference Result 1230 states and 1230 transitions. [2020-09-04 17:56:22,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-09-04 17:56:22,968 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 1178 [2020-09-04 17:56:22,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:56:22,974 INFO L225 Difference]: With dead ends: 1230 [2020-09-04 17:56:22,974 INFO L226 Difference]: Without dead ends: 1222 [2020-09-04 17:56:22,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=249, Invalid=6891, Unknown=0, NotChecked=0, Total=7140 [2020-09-04 17:56:22,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2020-09-04 17:56:23,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1202. [2020-09-04 17:56:23,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1202 states. [2020-09-04 17:56:23,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1202 transitions. [2020-09-04 17:56:23,073 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1202 transitions. Word has length 1178 [2020-09-04 17:56:23,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:56:23,074 INFO L479 AbstractCegarLoop]: Abstraction has 1202 states and 1202 transitions. [2020-09-04 17:56:23,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-09-04 17:56:23,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1202 transitions. [2020-09-04 17:56:23,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1202 [2020-09-04 17:56:23,085 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:56:23,086 INFO L422 BasicCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 32, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:56:23,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-09-04 17:56:23,086 INFO L427 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:56:23,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:56:23,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1412736980, now seen corresponding path program 31 times [2020-09-04 17:56:23,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:56:23,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619602983] [2020-09-04 17:56:23,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:56:23,102 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:56:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:56:26,898 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:56:26,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:56:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:56:28,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:56:28,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619602983] [2020-09-04 17:56:28,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:56:28,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2020-09-04 17:56:28,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430216641] [2020-09-04 17:56:28,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-09-04 17:56:28,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:56:28,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-09-04 17:56:28,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1893, Unknown=0, NotChecked=0, Total=1980 [2020-09-04 17:56:28,426 INFO L87 Difference]: Start difference. First operand 1202 states and 1202 transitions. Second operand 45 states. [2020-09-04 17:56:28,890 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:56:55,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:56:55,783 INFO L93 Difference]: Finished difference Result 1253 states and 1253 transitions. [2020-09-04 17:56:55,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-09-04 17:56:55,785 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 1201 [2020-09-04 17:56:55,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:56:55,790 INFO L225 Difference]: With dead ends: 1253 [2020-09-04 17:56:55,791 INFO L226 Difference]: Without dead ends: 1245 [2020-09-04 17:56:55,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 861 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=255, Invalid=7227, Unknown=0, NotChecked=0, Total=7482 [2020-09-04 17:56:55,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2020-09-04 17:56:55,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1225. [2020-09-04 17:56:55,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1225 states. [2020-09-04 17:56:55,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1225 transitions. [2020-09-04 17:56:55,930 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1225 transitions. Word has length 1201 [2020-09-04 17:56:55,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:56:55,932 INFO L479 AbstractCegarLoop]: Abstraction has 1225 states and 1225 transitions. [2020-09-04 17:56:55,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-09-04 17:56:55,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1225 transitions. [2020-09-04 17:56:55,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1225 [2020-09-04 17:56:55,942 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:56:55,943 INFO L422 BasicCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:56:55,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-09-04 17:56:55,943 INFO L427 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:56:55,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:56:55,944 INFO L82 PathProgramCache]: Analyzing trace with hash -514506516, now seen corresponding path program 32 times [2020-09-04 17:56:55,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:56:55,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848100005] [2020-09-04 17:56:55,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:56:55,955 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:56:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:57:00,119 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:57:00,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:57:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:57:01,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:57:01,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1848100005] [2020-09-04 17:57:01,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:57:01,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2020-09-04 17:57:01,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233279692] [2020-09-04 17:57:01,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-09-04 17:57:01,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:57:01,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-09-04 17:57:01,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=1981, Unknown=0, NotChecked=0, Total=2070 [2020-09-04 17:57:01,706 INFO L87 Difference]: Start difference. First operand 1225 states and 1225 transitions. Second operand 46 states. [2020-09-04 17:57:02,171 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-04 17:57:31,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:57:31,107 INFO L93 Difference]: Finished difference Result 1276 states and 1276 transitions. [2020-09-04 17:57:31,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-09-04 17:57:31,109 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 1224 [2020-09-04 17:57:31,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:57:31,115 INFO L225 Difference]: With dead ends: 1276 [2020-09-04 17:57:31,115 INFO L226 Difference]: Without dead ends: 1268 [2020-09-04 17:57:31,117 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 903 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=261, Invalid=7571, Unknown=0, NotChecked=0, Total=7832 [2020-09-04 17:57:31,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2020-09-04 17:57:31,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1248. [2020-09-04 17:57:31,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1248 states. [2020-09-04 17:57:31,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1248 transitions. [2020-09-04 17:57:31,218 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1248 transitions. Word has length 1224 [2020-09-04 17:57:31,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:57:31,219 INFO L479 AbstractCegarLoop]: Abstraction has 1248 states and 1248 transitions. [2020-09-04 17:57:31,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-09-04 17:57:31,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1248 transitions. [2020-09-04 17:57:31,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1248 [2020-09-04 17:57:31,231 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:57:31,232 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:57:31,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-09-04 17:57:31,232 INFO L427 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:57:31,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:57:31,233 INFO L82 PathProgramCache]: Analyzing trace with hash 515763412, now seen corresponding path program 33 times [2020-09-04 17:57:31,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:57:31,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487003590] [2020-09-04 17:57:31,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:57:31,242 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:57:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:57:38,769 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-04 17:57:38,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:57:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:57:42,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:57:42,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1487003590] [2020-09-04 17:57:42,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:57:42,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2020-09-04 17:57:42,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623296821] [2020-09-04 17:57:42,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-09-04 17:57:42,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:57:42,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-09-04 17:57:42,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=2308, Unknown=0, NotChecked=0, Total=2450 [2020-09-04 17:57:42,552 INFO L87 Difference]: Start difference. First operand 1248 states and 1248 transitions. Second operand 50 states. [2020-09-04 17:58:08,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:58:08,280 INFO L93 Difference]: Finished difference Result 1257 states and 1257 transitions. [2020-09-04 17:58:08,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-09-04 17:58:08,280 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 1247 [2020-09-04 17:58:08,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:58:08,282 INFO L225 Difference]: With dead ends: 1257 [2020-09-04 17:58:08,282 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 17:58:08,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=166, Invalid=2590, Unknown=0, NotChecked=0, Total=2756 [2020-09-04 17:58:08,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 17:58:08,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 17:58:08,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 17:58:08,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 17:58:08,286 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1247 [2020-09-04 17:58:08,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:58:08,287 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 17:58:08,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-09-04 17:58:08,287 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 17:58:08,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 17:58:08,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-09-04 17:58:08,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 17:58:08,532 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:08,716 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:10,525 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 17:58:11,275 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-09-04 17:58:11,595 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:11,818 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:13,661 WARN L193 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 17:58:14,369 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 17:58:15,602 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:15,822 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:18,035 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 17:58:18,739 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-09-04 17:58:20,895 WARN L193 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-09-04 17:58:21,113 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:21,286 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:22,919 WARN L193 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 17:58:23,625 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-09-04 17:58:23,936 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:24,110 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:25,630 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-09-04 17:58:26,370 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 17:58:27,074 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 17:58:28,319 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:28,543 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:29,082 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:30,368 WARN L193 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-09-04 17:58:31,070 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 17:58:31,355 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:31,531 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:33,122 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 17:58:33,335 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:33,510 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:35,058 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:35,323 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:37,614 WARN L193 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-09-04 17:58:38,315 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 17:58:39,013 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-09-04 17:58:41,300 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:41,565 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:43,801 WARN L193 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-09-04 17:58:44,502 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 17:58:46,734 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:46,998 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-09-04 17:58:48,552 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-09-04 17:58:49,464 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-04 17:58:50,319 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-09-04 17:58:50,547 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:58:50,763 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:58:50,930 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 17:58:51,081 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 17:58:51,230 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 17:58:51,377 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 17:58:51,587 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:58:51,795 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 21 [2020-09-04 17:58:52,009 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:58:52,555 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 17:58:53,040 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 17:58:53,379 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 17:58:53,524 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 17:58:53,864 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 28 [2020-09-04 17:58:54,208 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 28 [2020-09-04 17:58:54,559 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 17:58:54,703 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 17:58:55,056 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 17:58:55,403 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 17:58:55,752 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:58:56,118 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:58:56,473 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:58:56,826 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:58:56,975 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 17:58:57,178 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:58:57,524 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:58:57,677 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 17:58:58,028 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:58:58,372 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:58:58,730 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:58:59,093 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:58:59,449 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 17:59:04,744 WARN L193 SmtUtils]: Spent 5.29 s on a formula simplification. DAG size of input: 258 DAG size of output: 190 [2020-09-04 17:59:09,686 WARN L193 SmtUtils]: Spent 4.93 s on a formula simplification. DAG size of input: 249 DAG size of output: 185 [2020-09-04 17:59:09,837 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 17:59:10,058 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:59:10,275 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:59:10,486 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:59:10,697 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:59:10,904 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:59:11,123 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:59:11,340 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:59:11,544 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:59:11,759 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:59:11,976 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:59:12,183 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:59:12,395 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:59:12,599 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:59:12,806 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:59:13,020 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 21 [2020-09-04 17:59:13,230 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 21 [2020-09-04 17:59:13,425 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 20 [2020-09-04 17:59:13,625 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 20 [2020-09-04 17:59:13,950 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 26 [2020-09-04 17:59:14,289 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 26 [2020-09-04 17:59:14,829 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 17:59:15,153 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 26 [2020-09-04 17:59:15,709 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 17:59:16,019 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:16,363 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 28 [2020-09-04 17:59:16,699 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 28 [2020-09-04 17:59:17,002 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:17,349 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 17:59:17,557 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:59:17,880 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:18,236 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:18,625 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:18,938 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:19,295 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:19,588 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:19,902 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:20,279 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:20,657 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:20,963 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:21,310 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:21,463 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 10 [2020-09-04 17:59:21,756 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:22,107 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:22,467 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:22,786 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:27,952 WARN L193 SmtUtils]: Spent 5.16 s on a formula simplification. DAG size of input: 258 DAG size of output: 190 [2020-09-04 17:59:32,797 WARN L193 SmtUtils]: Spent 4.84 s on a formula simplification. DAG size of input: 257 DAG size of output: 193 [2020-09-04 17:59:33,100 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:33,403 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:33,710 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:34,019 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:34,171 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 17:59:34,478 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:34,782 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:35,091 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:35,393 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:35,697 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:36,005 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:36,155 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 10 [2020-09-04 17:59:36,465 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:36,776 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:37,082 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:37,387 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:37,687 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:37,993 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:38,292 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:38,599 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:38,904 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:39,211 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:39,518 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:39,829 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:40,392 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 17:59:40,695 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:41,244 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 17:59:41,542 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:41,879 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 28 [2020-09-04 17:59:42,217 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 28 [2020-09-04 17:59:42,553 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 28 [2020-09-04 17:59:42,859 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:43,209 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 17:59:43,564 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:43,868 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:44,177 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:44,385 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 17:59:44,750 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:45,112 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:45,416 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:45,729 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:46,074 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:46,394 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:46,648 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:46,982 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:47,331 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:47,684 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:47,989 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:48,318 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:48,664 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:49,017 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:49,397 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:49,699 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:50,016 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:50,393 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:50,706 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:51,037 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 17:59:51,398 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 17:59:56,574 WARN L193 SmtUtils]: Spent 5.17 s on a formula simplification. DAG size of input: 257 DAG size of output: 193 [2020-09-04 18:00:01,791 WARN L193 SmtUtils]: Spent 5.21 s on a formula simplification. DAG size of input: 249 DAG size of output: 185 [2020-09-04 18:00:02,142 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:02,474 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:02,634 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:02,979 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:03,301 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:03,622 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:03,972 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:04,134 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:04,440 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:04,782 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:04,951 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:05,285 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:05,613 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:05,880 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:06,222 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:06,541 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:06,878 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:07,198 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:07,530 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:07,876 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:08,191 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:08,545 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 28 [2020-09-04 18:00:08,705 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:09,061 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 18:00:09,221 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:09,592 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 18:00:09,953 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:10,111 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:10,344 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:10,722 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:10,883 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:11,251 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:11,618 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:11,977 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:12,206 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:12,563 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:12,786 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:13,169 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:13,531 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:13,694 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:13,853 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:19,307 WARN L193 SmtUtils]: Spent 5.45 s on a formula simplification. DAG size of input: 253 DAG size of output: 189 [2020-09-04 18:00:19,460 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:19,614 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:19,770 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:20,000 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:20,155 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:20,311 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:20,532 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:20,748 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:20,910 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:21,070 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:21,228 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:21,376 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:21,593 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:21,814 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:21,966 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:22,122 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:22,274 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:22,442 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:22,684 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:22,908 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:23,059 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:23,215 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:23,372 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:23,529 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:23,746 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:23,967 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:24,523 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 18:00:25,086 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 18:00:25,239 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:25,555 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:25,705 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:25,916 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 20 [2020-09-04 18:00:26,276 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 18:00:26,637 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 18:00:26,858 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 20 [2020-09-04 18:00:27,219 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 18:00:27,583 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:27,741 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:28,107 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:28,340 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:28,719 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:28,875 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:29,241 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:29,618 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:29,792 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:30,145 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:30,460 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:30,787 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:31,162 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:31,545 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:31,920 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:32,289 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 18:00:37,765 WARN L193 SmtUtils]: Spent 5.47 s on a formula simplification. DAG size of input: 258 DAG size of output: 190 [2020-09-04 18:00:37,920 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:43,166 WARN L193 SmtUtils]: Spent 5.24 s on a formula simplification. DAG size of input: 249 DAG size of output: 185 [2020-09-04 18:00:43,331 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:43,487 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:43,659 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:43,775 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:43,912 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:44,149 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:44,395 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:44,553 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:44,775 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:44,985 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 20 [2020-09-04 18:00:45,209 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:45,421 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 20 [2020-09-04 18:00:45,641 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:45,796 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:46,010 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:46,167 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:46,388 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:46,541 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:46,765 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:46,919 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:47,143 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:47,374 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 21 [2020-09-04 18:00:47,598 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:47,821 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 21 [2020-09-04 18:00:48,044 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:48,200 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:48,418 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:48,576 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:48,789 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:48,949 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:49,173 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:49,325 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:49,575 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 21 [2020-09-04 18:00:49,810 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:50,034 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 21 [2020-09-04 18:00:50,254 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:50,465 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 20 [2020-09-04 18:00:50,618 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:50,820 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 20 [2020-09-04 18:00:50,980 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:51,181 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 18 [2020-09-04 18:00:51,341 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:51,545 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 18 [2020-09-04 18:00:51,705 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:52,026 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:52,245 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:52,810 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 18:00:53,370 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 18:00:53,703 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:00:53,924 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:54,275 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 28 [2020-09-04 18:00:54,501 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:54,870 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 18:00:55,025 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:55,181 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:55,546 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 18:00:55,702 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:56,069 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:56,229 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:56,601 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:56,981 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:57,355 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:57,511 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:57,879 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:58,253 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:58,413 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:00:58,781 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:59,024 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:00:59,410 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:00:59,772 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:00,003 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:01:00,313 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:00,504 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:01:00,665 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:01,037 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 18:01:01,201 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:06,697 WARN L193 SmtUtils]: Spent 5.49 s on a formula simplification. DAG size of input: 249 DAG size of output: 185 [2020-09-04 18:01:06,865 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:07,025 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:07,187 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:07,435 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:01:07,601 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:07,868 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:01:08,102 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:01:08,264 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:08,428 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:08,590 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:08,759 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:09,003 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:01:09,233 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:01:09,397 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:09,561 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:09,732 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:09,897 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:15,398 WARN L193 SmtUtils]: Spent 5.50 s on a formula simplification. DAG size of input: 257 DAG size of output: 193 [2020-09-04 18:01:20,991 WARN L193 SmtUtils]: Spent 5.59 s on a formula simplification. DAG size of input: 262 DAG size of output: 198 [2020-09-04 18:01:21,319 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:21,495 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:21,828 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:22,066 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:01:22,411 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:22,742 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:23,075 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:23,229 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 10 [2020-09-04 18:01:23,562 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:23,887 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:24,213 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:24,539 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:24,869 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:25,194 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:25,518 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:25,845 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:26,169 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:26,498 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:26,828 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:27,163 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:27,491 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:27,840 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:28,175 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:28,506 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:28,847 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:29,015 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:29,621 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 18:01:29,974 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:30,599 WARN L193 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 18:01:30,944 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:31,282 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:31,666 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 28 [2020-09-04 18:01:32,037 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 18:01:32,263 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:01:32,647 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:33,023 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:33,402 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:33,990 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 18:01:34,377 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:34,771 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:35,151 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:35,533 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:35,909 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:36,292 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:36,675 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:37,066 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:37,450 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:43,333 WARN L193 SmtUtils]: Spent 5.88 s on a formula simplification. DAG size of input: 253 DAG size of output: 189 [2020-09-04 18:01:48,749 WARN L193 SmtUtils]: Spent 5.41 s on a formula simplification. DAG size of input: 257 DAG size of output: 193 [2020-09-04 18:01:48,920 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:49,105 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:01:49,473 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:49,810 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:50,401 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 18:01:50,649 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:01:51,290 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 18:01:51,630 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:51,972 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:01:52,364 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:52,765 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 18:01:53,155 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 18:01:53,543 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:53,905 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:54,249 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:54,618 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:55,000 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:55,386 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:55,755 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:55,914 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 10 [2020-09-04 18:01:56,148 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:01:56,529 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:56,909 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:57,293 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:57,672 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:01:57,833 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:03,147 WARN L193 SmtUtils]: Spent 5.31 s on a formula simplification. DAG size of input: 257 DAG size of output: 193 [2020-09-04 18:02:03,313 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:03,478 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:03,640 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:03,864 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 20 [2020-09-04 18:02:04,025 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:04,188 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:04,415 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 20 [2020-09-04 18:02:04,576 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:04,734 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:04,898 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:05,061 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:05,294 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 21 [2020-09-04 18:02:05,533 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 21 [2020-09-04 18:02:05,701 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:05,868 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:06,033 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:06,194 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:06,423 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:02:06,654 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:02:06,819 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:06,981 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:07,145 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:07,288 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:07,443 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:02:07,872 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 18:02:08,341 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 18:02:08,525 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:02:08,795 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:09,076 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:09,348 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:09,617 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:09,886 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:10,015 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 10 [2020-09-04 18:02:10,286 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:10,554 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:10,814 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:11,073 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:11,353 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:11,627 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:11,896 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:12,163 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:12,428 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:12,701 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:12,973 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:13,257 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:13,516 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:13,771 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:14,037 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:14,309 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:14,569 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:14,840 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:15,114 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:15,376 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:15,648 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:15,924 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:16,210 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:16,488 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:16,985 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 18:02:17,262 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:17,530 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:18,029 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 18:02:18,218 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:02:18,498 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:18,776 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:19,067 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 28 [2020-09-04 18:02:19,368 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 28 [2020-09-04 18:02:19,638 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:19,907 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:20,242 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:02:20,554 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:02:20,748 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 21 [2020-09-04 18:02:21,017 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:21,286 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:21,592 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:02:21,896 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:02:22,201 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:02:22,469 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:22,745 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:23,063 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:02:23,378 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:02:23,649 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:23,925 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:24,226 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:02:24,544 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:02:24,818 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:25,091 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:25,396 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:02:25,578 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:02:25,820 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:26,076 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:26,373 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:02:26,672 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:02:26,929 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:27,195 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:27,491 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:02:31,693 WARN L193 SmtUtils]: Spent 4.20 s on a formula simplification. DAG size of input: 253 DAG size of output: 189 [2020-09-04 18:02:35,636 WARN L193 SmtUtils]: Spent 3.94 s on a formula simplification. DAG size of input: 257 DAG size of output: 193 [2020-09-04 18:02:39,599 WARN L193 SmtUtils]: Spent 3.96 s on a formula simplification. DAG size of input: 249 DAG size of output: 185 [2020-09-04 18:02:39,850 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:40,097 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:40,223 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:40,476 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:40,729 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:40,859 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:41,112 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:41,367 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:41,489 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:41,735 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:41,983 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:42,160 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:02:42,407 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:42,668 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:42,930 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:43,191 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:43,455 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:43,723 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:43,988 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:44,249 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:44,512 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:44,787 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:45,063 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:45,326 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:45,580 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:45,839 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:45,959 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 10 [2020-09-04 18:02:46,210 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:46,466 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:46,743 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:47,019 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:47,309 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:47,605 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:47,881 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:48,163 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:48,450 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:48,711 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:48,976 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:49,241 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:49,498 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:49,762 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:50,026 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:50,290 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:50,561 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:50,826 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:51,077 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:51,345 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:51,516 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 20 [2020-09-04 18:02:51,785 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:52,055 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:52,351 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 28 [2020-09-04 18:02:52,826 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 18:02:53,082 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:53,335 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:53,822 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 33 [2020-09-04 18:02:53,972 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 18 [2020-09-04 18:02:54,272 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 28 [2020-09-04 18:02:54,542 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:54,816 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:55,110 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 28 [2020-09-04 18:02:55,400 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 28 [2020-09-04 18:02:55,658 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:55,908 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:56,195 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 29 [2020-09-04 18:02:56,318 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2020-09-04 18:02:56,576 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:56,840 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:57,141 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:02:57,468 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:02:57,736 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:57,988 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:58,288 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30 [2020-09-04 18:02:58,465 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 22 [2020-09-04 18:02:58,741 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:59,014 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 18 [2020-09-04 18:02:59,300 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 30